Ms. Dee is so MEAN; she makes me ADD then DIVIDE

Explanation

This is a mnemonic to help you remember how to calculate the average (mean).

• MEAN - ADD all the numbers then DIVIDE by the total number of items

Example

• 4 + 8 + 12 = 24
• 3 numbers (factors)
• 24/3 = 8
• 8 is the average (mean)